FreeDV is designed for use on HF, but what happens if you use it on FM with flat radios?
I'm tempted to try it with a friend about 30 miles away on 1.25m simplex just for shits and giggles.
I'm a blind (going deaf) amateur radio operator in New York City, licensed since 1993, primarily found on VHF/UHF and Allstarlink. I run the Allstarlink/digital bridges for www.BlindHams.com.
I'm an audio engineer by trade, which is really fun when going deaf, and enjoy playing with VoIP, Raspberry Pi projects, etc. Also pretend to be a musician sometimes.
I mostly just post amateur radio stuff here. My more general account is @BorrisInABox
73
N2DYI
WRQC647
FreeDV is designed for use on HF, but what happens if you use it on FM with flat radios?
I'm tempted to try it with a friend about 30 miles away on 1.25m simplex just for shits and giggles.
Right. Most of the amateur DV mode MBE patents have already expired[1], and those for AMBE+2 will do so within the next few years so, yes, the driver for "not AMBE" is largely gone, and even that could have been addressed with Codec 2 on DMR.
For the M17 digital mode more broadly, I had already noticed that it was not a great deal better than other modes, and rather less capable than DMR. Naylor's comments suggest that it's materially worse.
1: IIUC: for D-STAR, YSF, and P25 phase 1
Reading this update on M17 and MMDVM makes me sad. Maybe it doesn't matter much any more because the essential AMBE patents have expired and there's just no particular reason to do M17 instead of P25 on VHF/UHF? I don't know a lot here...
I've found myself doing more HF than VFH or UHF, so if I do digital voice I suppose it's likely to be FreeDV anyway, I guess...
Jonathan Naylor has removed M17 from the MMDVM project, citing multiple administrative, leadership and technical problems.
Honestly, it kind of hurts to read this, but doesn't really surprise me all that much, either.
I have never purchased anything from Palomar Engineers.
Neither would I describe myself as somebody on the left "side" of politics.
But with this, Palomar has ensured that they will not have the pleasure of my business.
🤨
Something lost in translation, or the AI that was writing this product description was briefly confused.
One of these days, I will turn my radio on, tuned to my Allstarlink system, and not hear KF4CCG.
Yeah, right, sure...
RIP Hamshack Hotline, sunset date 2025 08 29